Lizzy came to Mr Kganyago to tell him that he should stop taking her mother out, without talking to her first. Lizzy said this because she knows her mother always communicates with her, but since Kganyago came to the picture she lost communication with her mother. That is why she blames Mr Kganyago.
Mr Kganyago was not happy with Lizzy and he shouted at her, by telling her to respect him and stop acting like a toddler. Mr Kganyago is always faking a smile to Lizzy everytime when Jacobeth is around, because he does not want Jacobeth to see that he does not like her daughter Lizzy.
Lizzy now can see that Mr Kganyago is not a good person at all. All she has to do now is to investigate about Mr Kganyago in order to protect her mother from him.